#include<stdio.h>
#include<conio.h>
#include<iostream>
using namespace std;
class CRectangle
{
	int w,h;
public:
	void setValues(int a,int b);
	int area();
};
void CRectangle::setValues(int a,int b)
{
	w=a;
	h=b;
}
int CRectangle::area()
{
	return(w*h);
}
int main()
{
	CRectangle recta;
	recta.setValues(3,4);
	CRectangle *rectb;
	rectb=&recta;
	rectb->setValues(3,9);
	cout<<"area:"<<recta.area();
	cout<<"area:"<<rectb->area();
	CRectangle *rectc=new CRectangle();
	rectc->setValues(5,6);
	rectb=rectc;
	rectc->setValues(7,8);
	cout<<"area:"<<rectb->area();
	cout<<"area:"<<rectc->area();
	getch();
	return 0;
}